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Amber Alerts for a San Diego man wanted for arson and murder and a teenager he allegedly kidnapped have been expanded to include Oregon and Washington.

However, San Diego County sheriff's homicide investigators say several recently reported sightings have not yet been confirmed.

Amber Alert Expanded to Oregon, Washington

NBC 7's Megan Tevrizian updates on the fourth day of the investigation into a missing Lakeside teenager and her younger brother. Officials are search for Hannah and Ethan Anderson along with murder and arson suspect James Lee DiMaggio. (Published Thursday, Aug. 8, 2013)

James Lee DiMaggio, 40, of Boulevard and Hannah Anderson, 16, are the subjects of an Amber Alert issued by authorities in San Diego Monday.

DiMaggio is believed to be driving a blue Nissan Versa with California license 6WCU986.

Vigil Held for Missing Lakeside Teen

Friends and family gathered Tuesday night to "Prayforhannah" - Hannah Anderson, the 16-year-old girl believed to have been abducted after her mother was murdered in Boulevard. NBC 7's Chris Chan reports. (Published Wednesday, Aug. 7, 2013)

A blue Nissan Versa was reported along Highway 395/299 traveling north from Alturas possibly toward Oregon or Nevada. There was another possible sighting of the car in southern Oregon, near Lakeview.

Then Thursday morning, a Washington radio station learned from the state troopers that a driver near Bremerton reported the car on Highway 101 with a man driving and a woman passenger.

Teen Victim Safe After "Horrific Ordeal"

DiMaggio is suspected of killing two people and torching his log-cabin style home in the remote community of Boulevard east of San Diego and just north of the U.S.-Mexico border.

Sheriff’s homicide Lt. Glenn Giannantonio said the bodies of Christina Anderson, 42, of Lakeside and an unidentified child were found on the property. Giannantonio said it could be several days before DNA test results will provide a positive identification of the second victim.

For now, Christina’s 8-year-old son Ethan is also the subject of the Amber Alert which was expanded Thursday to include California, Oregon and Washington.

Christina's father, Christopher Saincome, said Wednesday that his daughter visited DiMaggio's home last weekend to say goodbye before he moved to Texas.

"He must have had this planned," Saincome told the Associated Press.

Saincome said nothing seemed amiss when he called his daughter at work Friday to let her know she didn't call on his birthday. Anderson, a medical assistant, said she would call back that night but never did.

Christina’s longtime friend Angelina Amati said the Dimaggio's infatuation with the 16-year-old Hannah might just keep her alive.

“Jim is sick enough in the head that he has so much love for her that he won't hurt her,” Amati said.

The NBC station in Seattle spoke with Dimaggio's ex-wife who asked not to be identified but responded to some questions.

She says never saw anything weird about DiMaggio however their divorce was completely shocking and not the person she married.

She said she was shocked to learn the news since DiMaggio has been best friends with the family for such a long time.

Authorities don’t believe the relationship between Christina Anderson and DiMaggio was anything other than platonic, Giannantonio said